// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CONTENT_SHELL_RENDERER_LAYOUT_TEST_TEST_MEDIA_STREAM_VIDEO_RENDERER_H_
#define CONTENT_SHELL_RENDERER_LAYOUT_TEST_TEST_MEDIA_STREAM_VIDEO_RENDERER_H_

#include "base/macros.h"
#include "base/time/time.h"
#include "content/public/renderer/media_stream_video_renderer.h"
#include "ui/gfx/geometry/size.h"

namespace base {
class SingleThreadTaskRunner;
}

namespace content {

// A MediaStreamVideoRenderer that generates raw frames and
// passes them to webmediaplayer.
// Since non-black pixel values are required in the layout test, e.g.,
// media/video-capture-canvas.html, this class should generate frame with
// only non-black pixels.
class TestMediaStreamVideoRenderer : public MediaStreamVideoRenderer {
public:
    TestMediaStreamVideoRenderer(
        const scoped_refptr<base::SingleThreadTaskRunner>& io_task_runner,
        const gfx::Size& size,
        const base::TimeDelta& frame_duration,
        const base::Closure& error_cb,
        const RepaintCB& repaint_cb);

    // MediaStreamVideoRenderer implementation.
    void Start() override;
    void Stop() override;
    void Resume() override;
    void Pause() override;

protected:
    ~TestMediaStreamVideoRenderer() override;

private:
    enum State {
        kStarted,
        kPaused,
        kStopped,
    };

    void GenerateFrame();

    scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
    scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_;
    gfx::Size size_;
    State state_;

    base::TimeDelta current_time_;
    base::TimeDelta frame_duration_;
    base::Closure error_cb_;
    RepaintCB repaint_cb_;

    DISALLOW_COPY_AND_ASSIGN(TestMediaStreamVideoRenderer);
};

} // namespace content

#endif // CONTENT_SHELL_RENDERER_LAYOUT_TEST_TEST_MEDIA_STREAM_VIDEO_RENDERER_H_
